Re-classification of the alleged quasar Q0045-3337
R.Decarli, R.Falomo, J.Kotilainen, M.Labita, R.Scarpa, A.Treves
TL;DR
This study re-evaluates the nature of Q0045-3337, initially thought to be a high-redshift quasar, and finds it is actually a star, specifically a B-type star, challenging previous classification.
Contribution
The paper provides a spectroscopic reclassification of Q0045-3337, demonstrating it is a star rather than a quasar, which corrects prior misidentification.
Findings
Q0045-3337 is a B-type star, not a quasar
The object may be a white dwarf or a halo population Blue Horizontal Branch star
Previous high-redshift quasar classification is incorrect
Abstract
We present a medium-resolution optical spectrum of the alleged high-redshift quasar Q0045-3337, taken at the ESO/3.6m telescope. Our observations show that the object is not a quasar but a star of spectral type B. We suggest that the object is either a white dwarf or a halo population Blue Horizontal Branch star.
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